行列式，叉积 (2)

http://www.evernote.com/shard/s146/sh/587e6520-0c63-4171-a249-945cae255c97/83eecfd4d79c74ee06c7d25d41334258

posted on 2013-11-07 23:12  上善若水123  阅读(322)  评论(0)  编辑  收藏  举报

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